Liquid-filter



(N0 MotiIal.)

J. ELLIS. LIQUID FILTER.

No. 507,893. Patented Oct. 31,1893.

Wig/545% 1 g; TDFK m Y UNITED STATES PATENT OFFICE.

" JOHN ELLIS, OF LYNN, MASSAGHUSETTS.

LIQUID-FILTER.

SPECIFICATION forming part of LettersPatent No. 507,893, dated October31, 1893. Application 1118a November 26,1892. semi No. 453,211. (Nomodel.)

.To all whom it may concern.-

Be it known that I, JOHN ELLIS, of Lynn,

ful Improvements in Liquid-Filters, of which the following is a full,clear, and exact description.

This invention consists of a filter for filtering water or other liquidconstructed and arranged for operation all substantially as hereinafterfully described reference being had to the accompanying sheet ofdrawings, in which is illustrated a filter constructed in accordancewith this invention.

Figure 1 is a vertical central section; Fig. 2 a cross section on line22 Fig. 1.

In the drawings A, represents the body of the filter, B, 0, its twoends, each of which has an internal screw thread a by which it isadapted to screw at each end on to the water faucet. The body A and endB are cast in one piece integral with each other, but the end 0 has onits inner end an internal screw thread I) by which it is screwed overthe end F, of the body, and when screwed thereon the filter by eitherend can be screwed to the wa-. ter faucet, so that the filter can bechanged from end to end as desired, readily and conveniently. Bearing ona shoulder H in the body at the end dis a perforated plate J and K isanother perforated plate resting on a shoulder e in the other end F, ofthe body, which is held in place by a spring wire L bent in a circularform, having its two ends a short distance apart, it being in its normalcondition of a little larger diameter than the in ternal diameter of thebody at such place, so that when placed in position over the perforatedplate Kit is compressed more or less when by its spring pressure againstthe sides of the body it will hold the perforated plate K in its seat.

M is a leather washer, of ring shape, which lays against the wirespring, and when the end piece 0 is screwed down in place it presses byits shoulder such washer against the spring and makes a tight joint.There is also in each screw end a leather washer N of ring shape whichrests against a shoulder h at such plates, but in filters now in use forsuch purposes both ends are made separate and screw onto the bodyportion,whereas in this invention, one end being integral with the bodyand one only separate to be screwed on after the filter is prepared, asis obvious makes the cost of the filter much cheaper and therefore moredesirable. There is a space Q between each perforated plate and theoutlet opening R, of the filter which opening is contracted somewhat,such space serving as a chamber for the water, to prevent insome'degree, too forcible and direct discharge of the water.

The washers can be made of any suitable material also the perforatedplates can be of any suitable construction, wire gauze, &c., and theycan be secured in place in any suitable manner.

Havihg thus described my invention, what I claim is In a reversibleliquid filter, the combination with the body portion A, containingfiltering material P, of the ends B. 0, one of which is formed integralwith, and the other, detachably connected to the body portion, aninternal shoulder in each of said ends, a perforated plate J, restingupon one, a washer M, resting upon the otherof said shoulders, ashoulder e, formed on the inner surface of the body A, and adapted tosupport a second perforated plate, as K, and a spring ring I), placedbetween the plate and washer, whereby said plate is retained inposition, substantially as described.

In testimony whereof I have hereunto set my hand in the presence oftwo'subscribing witnesses.

JOHN ELLIS. Witnesses:

' EDWIN W. BROWN,

CARRIE E. NIoHoLs.

